Gasket



J 1937- cs. "r. BALFE'. 2,084,054

GASKET Original Filed Jan. 5, 1931 George T mm MWMK Patented June 15,1937 PATENT OFFICE GASKET George T. Balfe, Detroit, Micln, alaignor toDotroitGasket 8; Mfg. 00., Detroit, Mich a corporation of, MichiganOriginal application January 3, 1931, Serial No.

506,441, now Patent No. 1,928,585, dated September 26, 1933. Divided andthis application September 23, 1933, Serial No. 890,739

1 Claim.

This invention relates to gaskets, particularly for automotive use.

The object of the invention is to provide a unitary gasket of built-upstructure affording a very adequate seal in the case of complicatedjoints as well as joints, the surfaces of which, are possessed ofirregularities frequently diflicult to compensate for.

I have used with success, gaskets built-up from a plurality of separategasket layers made in accordance with my United States Patents Nos.1,927,450 and 1,776,140, and connected together by stitching, grommetsand similar independent fastening means.

In the present invention, the metal and asbestos and other cushioninglayers are built up into an integral structure, thereby (1) eliminatingthe necessity for separable fastening means and (2) providing a gasketin which any num- 20 her of layers may be used without requiring thatthey be formed from independent gasket struc-,

tures. In some cases, such an integral built-up gasket is highlyadvantageous.

While in the accompanyin drawing I have 5 illustrated a representativegasket embodying the invention, it is to be understood that theinvention may take other forms and shapes in accordance with the jointto be sealed.

Referring to the drawing,

Figure 1 is a top plan view;

Figure 2 is a side elevation, and

Figure 3 is a section on the line 3-3 of Figure 1.

The gasket III is formed of alternate layers 35 of metal II, preferablyof steel, and cushion material l2, such as asbestos. The metal layersare formed with struck-up projections I3 as in my aforesaid patents. Informing the gasket, in accordance with the example illustrated in the 40drawing, two metal layers having tangs or pro- J'ections I3 struck outfrom opposite sides are disposed between three cushion layers inalternate relation. The assembly is then compressed as a whole so as toembed the tangs I3 in the cushion layers. In this manner, the layers areunited into a built-up integral structure. The intermediate unitarylayer I3 in this construction has the projections I3 embedded thereinfrom opposite sides.

It will be appreciated that the surfaces of the gasket may consist ofmetal or cushion layers or one of each. I

The gasket has been found very advantageous in the sealing of difliculttypes of joints and is particularly useful where irregularities in thejoint surfaces have constituted a major problem.

While in the drawing, the projections areshown as not coming to thesurface, it is to be understood of course, that in accordance with myaforesaid patents, wherever it is desired to dissipate heat using theprojections as conduits, that the tangs are brought to the surface.

It is to be understood that the forms of the invention shown anddescribed are merely illustrative of preferred embodiments and that suchchanges may be made as fall within the scope of one skilled in the artwithout departing from the spirit of the invention and the scope of theappended claim.

This application is a division of my application Serial No. 506,441,filed January 3, 1931, now, Patent. No. 1,928,585, issued September 26,1933;

I claim:--

A gasket comprising a plurality of alternate layers of cushion materialand metal, a unitary, intermediate layer of cushion material disposedbetween adjacent metal layers, he metal layers having struck-upprojections extending out-' wardly from their faces for holding thelayers together, said intermediate layer of cushion material having theholding projections extending thereinto from opposite sidesof thecushion layer, at least one of said metal layers having a layer ofcushion material on the side thereof opposite said intermediate layer,and projections formed on the metal layer and extending into the lastmentioned cushion layer.

GEORGE T. BAIJ'E.

